RMS is an abbreviation for:

  • Reverendissimus, Latin for " Reverend " ( Lord, Father, etc.) - formal salutation of a prelate of the Catholic Church (→ Reverend )
  • Root Mean Square, English for the root mean square. Use as an effective value, a measurable parameter, for example, the electrical voltage and current
  • The RMS power, a formal size in advertising audio technology instead of the electric power
  • The effective velocity
  • RMS Austria, Austrian marketer of radio advertising
  • Radio Marketing Service, German marketer of radio advertising


  • RMS -6 was the first hydrogen bomb the Soviet Union. It was developed in 1950 and ignited on August 12, 1953
  • Disambiguation
  • Abbreviation